Fig. 4From: Radiographic analysis and virtual cleaning of a bioarchaeological remain enclosed in mineral deposits from a limestone caveAccuracy of resulting three-dimensional model. a Anterior view of resulting three-dimensional bone-models, after the virtual removal of speleothemic deposits, by three independent readers following a combined manual and HU threshold-based segmentation protocol. Projected colour-heat-maps illustrate differences between the respective model and the following model (clockwise). b The overall correlation between the three models is excellent, with over 68% of all points lying within a range of less than 1 mm, corresponding to less than three voxels on the computed tomography scan (voxel size = 0.33 × 0.33 × 0.67 mm)Back to article page